kitio.aiOpenAI Codex vs Middleware
A side-by-side look at pricing plans, free tiers, features, pros and cons, updated for 2026. OpenAI Codex starts at $8/mo and Middleware starts at See pricing page. Check both pricing pages for current plans.
At a glance
Best for
Pricing model
Starting price
Free plan
Made by
Based in
Rating
Key features
- Cloud coding tasks
- Codex CLI
- IDE extension
- Desktop app
- Automatic PR review
- OpsAI SRE agent
- Infrastructure monitoring
- APM and tracing
- Log monitoring
- Real user monitoring
- LLM observability
| Feature | OpenAI Codex | Middleware |
|---|---|---|
| Best for | OpenAI's coding agent in the cloud, CLI, IDE and desktop app | Full-stack observability platform with an AI SRE agent that fixes issues |
| Category | Coding | Coding |
| Pricing model | Freemium | Freemium |
| Starting price | $8/mo | See pricing page |
| Free plan | Yes | Yes |
| Made by | OpenAI | Middleware |
| Based in | United States | United States |
| Rating | No ratings yet | No ratings yet |
| Key features |
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Pricing compared
OpenAI Codex starts at $8/mo and Middleware starts at See pricing page. Check both pricing pages for current plans.
Free plan
Cheapest paid plan
Top plan
Free trial
6 plans
Free
Free
- Limited Codex usage
- Via ChatGPT account
Go
$8/mo
- ChatGPT Go plan
- More Codex usage than Free
Plus
$20/mo
- ChatGPT Plus plan
- Codex in CLI, IDE and cloud
Pro
$100/mo
- Starting price; $200 and $500 tiers
- Highest Codex limits
Business
$25/mo
- Per user
- Shared workspace and admin controls
Enterprise
Contact sales
- Enterprise security
- Flexible usage
3 plans
Free Forever
Free
- Up to 100GB data
- 1k RUM sessions
- 20k synthetic checks
- 14-day retention
Pay As You Go
$0.3 / GB
- $1 per 1K RUM sessions
- OpsAI error solving
- 30-day retention
- SSO and security features
BYOC
Custom
- Bring your own cloud
- Custom data retention
- 24x7 support
Prices in USD, checked Oct 28, 2026 or later. Plans change often, so confirm on each tool's site before you buy.
Pros and cons
OpenAI Codex
- Included in ChatGPT plans
- Runs many tasks in parallel
- Open-source CLI
- Token-based limits are hard to predict
- Free tier usage is small
Middleware
- Generous 100GB free tier
- Simple per-GB usage pricing
- AI agent suggests and applies fixes
- Usage costs can be hard to forecast
- Free tier keeps data only 14 days
- Smaller ecosystem than older APM vendors
Which one should you choose?
Choose OpenAI Codex if you want:
- Included in ChatGPT plans
- Runs many tasks in parallel
- Open-source CLI
Watch out: token-based limits are hard to predict.
Choose Middleware if you want:
- Generous 100GB free tier
- Simple per-GB usage pricing
- AI agent suggests and applies fixes
Watch out: usage costs can be hard to forecast.
OpenAI Codex vs Middleware FAQ
What is the difference between OpenAI Codex and Middleware?
OpenAI Codex: OpenAI's coding agent in the cloud, CLI, IDE and desktop app. Middleware: Full-stack observability platform with an AI SRE agent that fixes issues. Both are coding tools.
Is OpenAI Codex or Middleware cheaper?
OpenAI Codex starts at $8/mo and Middleware starts at See pricing page. Check both pricing pages for current plans.
Do OpenAI Codex and Middleware have free plans?
OpenAI Codex: Yes. Middleware: Yes.
Who makes OpenAI Codex?
OpenAI Codex is made by OpenAI, based in United States.
Who makes Middleware?
Middleware is made by Middleware, based in United States.
Which should I choose, OpenAI Codex or Middleware?
Choose OpenAI Codex if you value included in chatgpt plans and runs many tasks in parallel. Choose Middleware if you value generous 100gb free tier and simple per-gb usage pricing.